Clinical study of aspherical toric intraocular lens implantation for correcting corneal high astigmatism in cataract patients

Objective To evaluate the clinical efficacy of AcrySof SN60AT Toric IOL in correcting pre-operative comeal high astigmatism in cataract patients.Methods This was a retrospective observational study.This study enrolled 20 cases (22 eyes) with cataract combined high astigmatism underwent implantation of AcrySof SN60AT Toric IOL in cataract surgery.The preoperative and postoperative 3 months uncorrected distance visual acuity (UCVA) and best-corrected distance visual acuity (BCVA),postoperative residual astigmatism,and IOL rotational stability after postoperative 1 week,1 month and 3 months were evaluated.Results The postoperative 3 months UCVA was better than BCVA.77％ of eyes showed the 0.5.The postoperative residual astigmatism was 0.52± 0.28D and the preoperative residual astigmatism was 0.40±0.25D,there was no statistically difference between them.The mean IOL rotation was (3.69±1.35)o at 3 months follow-up.Conclusions Implantation of high power toric IOL in cataract surgery is a safe,effective and predictable method for correcting corneal high astigmatism. Key words: Corneal astigmatism;  Cataract;  Aspherical toric IOL